Southern Triangle Oil
Operator of record for 422 catalogued wells across 6 states. Every well below links to its full registry page.
Filed as: SOUTHERN TRIANGLE OIL · SOUTHERN TRIANGLE OIL CO · SOUTHERN TRIANGLE OIL COMPANY · Southern Triangle Oil Co. · …
At a glance
Southern Triangle Oil is the operator of record for 422 catalogued U.S. oil & gas wells in 6 states. 72 (17%) are active, 301 (71%) plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in Illinois, with 321 wells (76% of its portfolio).
Wells operated
422
Active
72
Plugged
301
Orphaned
1
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 321 |
| Ohio | 53 |
| Kentucky | 28 |
| West Virginia | 18 |
| Michigan | 1 |
| Pennsylvania | 1 |
Well mix
- Oil wells
- 199
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 17%
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Claim Southern Triangle Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Southern Triangle Oil operate?
Southern Triangle Oil's catalogued wells are spread across 6 states: Illinois (321), Ohio (53), Kentucky (28), West Virginia (18) and Michigan (1) and 1 more. Its 321 Illinois wells are 0.2% of the 174,478 catalogued in that state — its largest share of any state. Counts cover only states whose registries WellCensus has ingested with operator names; wells in Nebraska and Texas (location indexes) and in states without a registry ingest are not yet attributed to any operator.
How many of Southern Triangle Oil’s wells are active, plugged or orphaned?
17% of Southern Triangle Oil's catalogued wells are active, 12 percentage points below the national share of 29%. 71% are plugged & abandoned, against 47% nationally. 1 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Southern Triangle Oil operate?
By product class, 199 (47%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Carson 17 in Wabash, IL at 6,334 ft. The wells listed below sit in Wabash (IL), Guernsey (OH) and White (IL). State filings spell the name 5 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Southern Triangle Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Carson 17 | 12-185-27810 | Plugged & abandoned | Oil | Wabash, IL | Southern Triangle Oil Co. | 6,334 ft |
| Craig Russell H 1 | 34-059-21042 | Plugged & abandoned | Oil | Guernsey, OH | Southern Triangle Oil Co | 6,071 ft |
| Gattrell Edison 1 | 34-059-21127 | Plugged & abandoned | Oil | Guernsey, OH | Southern Triangle Oil Co | 6,008 ft |
| Winter, Ralph 4 | 12-193-32109 | Active | Oil | White, IL | Southern Triangle Oil Co. | 5,836 ft |
| Muskingum Watershed Conservancy Dist And Miles Bu 4 | 34-059-21125 | Plugged & abandoned | Oil | Guernsey, OH | Southern Triangle Oil Co | 5,805 ft |
| Muskingum Water Conservancy Dist 2 | 34-059-21075 | Plugged & abandoned | Oil | Guernsey, OH | Southern Triangle Oil Co | 5,780 ft |
| Smith Ep 1 | 34-059-20979 | Plugged & abandoned | Oil | Guernsey, OH | Southern Triangle Oil Co | 5,747 ft |
| Harbaugh Bf 1 | 34-059-20998 | Plugged & abandoned | Oil | Guernsey, OH | Southern Triangle Oil Co | 5,656 ft |
| Chumney Ervin 1 | 34-059-21101 | Plugged & abandoned | Oil | Guernsey, OH | Southern Triangle Oil Co | 5,601 ft |
| Manor Realty 1 | 34-059-21381 | Plugged & abandoned | Oil | Guernsey, OH | Southern Triangle Oil Co | 5,318 ft |
| Bennett John B 1 | 34-059-21305 | Plugged & abandoned | Oil | Guernsey, OH | Southern Triangle Oil Co | 5,205 ft |
| Schwyhart M - Smith R 1 | 34-059-21300 | Plugged & abandoned | Oil | Guernsey, OH | Southern Triangle Oil Co | 5,195 ft |
Deepest first where depth is published. See all 422 wells →
Frequently asked questions
How many wells does Southern Triangle Oil operate?
Southern Triangle Oil is the operator of record for 422 catalogued oil & gas wells, with the largest concentration in Illinois (321). Only wells in states WellCensus has ingested are counted.
How many of Southern Triangle Oil's wells are still active?
72 of Southern Triangle Oil's catalogued wells are active; 301 are plugged & abandoned and 1 are flagged as orphaned.
In which states does Southern Triangle Oil operate wells?
Southern Triangle Oil is the operator of record for wells in Illinois (321), Ohio (53), Kentucky (28), West Virginia (18), Michigan (1) and Pennsylvania (1).
Does Southern Triangle Oil operate mostly oil or gas wells?
199 of Southern Triangle Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Southern Triangle Oil's deepest well?
Among wells with a published depth, Carson 17 in Wabash, IL is the deepest at 6,334 ft.
Where Southern Triangle Oil's wells are
- Oil & gas wells in Illinois· 321 operated by Southern Triangle Oil
- Oil & gas wells in Ohio· 53 operated by Southern Triangle Oil
- Oil & gas wells in Kentucky· 28 operated by Southern Triangle Oil
- Oil & gas wells in West Virginia· 18 operated by Southern Triangle Oil
- Oil & gas wells in Michigan· 1 operated by Southern Triangle Oil
- Oil & gas wells in Pennsylvania· 1 operated by Southern Triangle Oil
- Largest U.S. well operators
- All well operators
About this data
Source: State oil & gas regulator registries (operator of record as filed, exact-normalized across states) plus the USGS United States Documented Orphaned Well Database (2026), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Southern Triangle Oil — well portfolio”, https://wellcensus.com/operators/southern-triangle-oil-67113 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).